Interest Under Sections 234A, 234B and 234C
Sections 234A, 234B, and 234C of the Income Tax Act, 1961 impose penal interest for late filing of the income tax return, shortfall in advance tax payment relative to assessed tax, and deferment of advance tax instalments respectively, each charged at 1% per month on the deficit amount.
Sections 234A, 234B, and 234C form the tripartite interest penalty framework for defaults in income tax compliance. Understanding all three is essential for any taxpayer managing significant income.
Section 234A applies when the return of income is filed after the due date specified under Section 139(1). Interest is levied at 1% per month (or part thereof) on the amount of tax determined as payable in the return, reduced by advance tax paid and TDS credited. Interest accrues from the day after the due date of filing until the date of actual filing. For assessment years post 2021-22, the due date for most individual taxpayers (other than those requiring audit) is 31 July.
Section 234B applies when the total advance tax paid during the year falls short of 90% of the assessed tax (i.e., the tax ultimately determined after assessment, including any demand raised during scrutiny). Interest is levied at 1% per month from 1 April of the assessment year until the date of payment or date of assessment, whichever is earlier, on the shortfall.
Section 234C addresses deferment of advance tax instalments. Even if the total advance tax paid meets the 90% threshold, interest under 234C is charged if the instalments at each quarterly due date are less than the prescribed cumulative percentages (15%, 45%, 75%). The interest is 1% per month for 3 months for each of the first three deferments, and 1% for 1 month for the March deferment.
For taxpayers with income from capital gains, dividends, or lottery winnings arising after a missed advance tax due date, Section 234C provides relief: such income arising in the March quarter need not have been incorporated in earlier advance tax calculations. This prevents anomalous interest charges for income that was not foreseeable.
The interest under these sections is mandatory and cannot be waived by the assessing officer except in genuine hardship cases approved by the CBDT. Interest paid under 234A/B/C is not deductible as a business expense.